Chimney-cowl.



No. 733,762. PATENTED JULY 14, 1903;

F. W STEIN.

CHIMNEY GOWL.

APPLICATION FILED NOV. 25; 1902.

' no MODEL.

W/T/VESSES: INVENTOR NiTED STATES Patented July 14, 1903.

PATENT OFFICE.

CH l M N EY-C-OW L.

SPECIFICATION forming part of Letters Patent No. 733,762, dated July 14,1903. Application filed November 25, l902. Serial No. 182,762. (Nomodel-l To all whom it may concern:

Be it known that I, FREDERICK W. STEIN,"

a citizen of the United States, and a resident of Jersey City, in thecounty of Hudson and State of New Jersey, have invented a new andImproved Chimney-Cowl, of which the following is a full, clear, andexact description.

The object of this invention is to provide a chimney-cowl which willinsure an effective draft through the flue. This end is attained byproviding a cowl with means forming an air-duct leading upward from theback of the cowl, over the top thereof, thus causing the gases or smoketo be drawn upward through the flue and out'of the cowl with thebeforementioned current of air.

This specification is an exact description of one example of myinvention, while the claim defines the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both views.

Figure lis a perspective view of theinvention, and Fig. 2 is a verticalsection thereof.

a indicates the flue or smoke-pipe, which is fitted at its top with aspider b, and below the spider b is a spider 0, these spiders carryingthe spindle d. Said spindle has a downwardlydirected pin cl, bearing inthe spider c to prevent lateral movement of the pin.Antifriction-bearing devices 61 are provided to sustain the pin on thisspider. The spindle (1 passes up laterally through the spider b and isprovided with a collar d which prevents the upwarddisplacement of thepin. A crossbar 6 is attached to the upper end of the spindle d, andthis bar has its ends fastened to the body f of the cowl. By thisarrangement the body or part f of the cowl is held to turn with thespindle d in the position shown in the drawings. A bead a. is formedaround the upper end of the flue a, and against this bead the concentriclower part of the cowl proper, f, bears snugly, so that it is impossiblefor any appreciable current of air to pass between the cowl f and thestack or flue a. The cowl proper may, however, be turned at will to anyposition around the circumference of the pipe. 7

9 indicates the top member of the cowl, which is set at an inclinationto the cowl proper, f,

usual manner.

and has its side corners g fastened by riveting, Soldering, or otherwiseto the sides of the cowl proper, f, these parts f and 9 being soarranged that an air-space '1; is provided between the t'op of the cowlproper, f, and the bottom of the section g, said section g extendingupward considerably above the cowl proper, f, and carrying at its upperend the usual blade in, which causes the cowl to be turned by the windinto the position desired.

The cowl proper, f, is formed of a sheet of metal curved longitudinallyand set at an inclination to the vertical, so as to deflect the draftfrom the chimney a in essentially the The top member 9 is also formed ofa metal sheet curved to correspond with the cowl proper, but on asharper are, so that when set on the cowl proper its side corners touchthe cowl proper, asdescribed above, and the middle portion is spacedtherefrom to form the passage 2' referred to. Also it may be observedfrom Fig. 2 that the member 9 sets at an inclination to the cowl proper,thus giving the passage 6 a flare toward the rear.

With the construction above described the cowl turns readily by theforce of the wind, so as to present its back thereto, and the smoke fromthe pipe a passes out from under the cowl proper, f. Simultaneously acurrent of air is forced through the passage 1' and escapes just overthe top of. the cowl proper, f. This current of air draws the smoke withit, and thereby increases the draft up the flue a.

Various changes in the form, proportions, and minor details of. myinvention may be resorted toat will-without departing from the spiritand scope thereof. Hence I consider myself entitled to all suchvariations as may lie within the intent of my claim.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- In a chimney-cowl, the combination with thesmoke-pipe or flue and with a rotating supporting means, held thereby,of a cowlbody formed of sheet metal attached to said rotating supportingmeans and curved in an arc concentric to the cross-sectional form of thesmoke-pipe, said cowl proper being ongaged with the upper edge of thesmoke-pipe to turn snugly around the same and slanting diagonally withrespect to the longitudinal In testimony whereof I have signed my axisof the pipe, and a top member formed of name to this specification inthe presence of 10 sheet metal cnrved on an arc sharper than that twosubscribing witnesses.

of the curvature of the cowl-body and lyin 5 over the cowl-body andspaced therefrom a?) FREDERICK STEIN the middle portion of thecowl-body, the side Witnesses: portions of the top member being securedto JACOB R. SCHIFF,

the side portion of the cowl-body. l HUGO VOGT.

